Good afternoon. I have an Azure function that is triggered when a blob drops into a blob container in an azure storage account. The function uses an HttpClient library asynchronous post to sharepoint via the sharepoint REST API. When I download the resulting zip file from Sharepoint, I am unable to open the file with Windows extractor (it will open with WinRar, but that is not the end goal). I then use a utility to open the same file in my Azure storage and compare with the file that I sent to Sharepoint. The Sharepoint file has additional header data in it. If I manually remove the header data from the corrupted file, I can open the file with Windows Extractor. A little further information, the additional header in the corrupt file is the content-disposition header.